#photoAlbum {
  position: absolute;
  width: 100%;
  height: 400px;
  margin: 80px auto;
  bottom: 70%;
}

/*左对齐，高宽*数量=整体div*/
#photoAlbum img {
  float: left;
  width: 150px;
  height: 150px;
  margin-left: 10px;
  margin-top: 5px;
  border-radius: 50%;
  box-shadow: 3px 3px 5px yellow;
}

#btn {
  color: whitesmoke;
  font-size: 45px;
  text-align: center;
  font-family: "Fantasy";
  text-shadow: 5px 5px 5px yellow;
  bottom: 45%;
}
